text: Dr. Bien said: "The cause of colon - bladder fistula is usually due to colonic malignancy that invades the bladder or diverticulitis with late complications of fistula.?
classes:  No, there are two main causes of a bladder - colon fistula.  Also, there are two main causes of a bladder - colon fistula.  Yes, there are two main causes of a bladder - colon fistula.